/Engine/Plugins/Online/OnlineServices/Source/OnlineServicesInterface/Public/Online/Schema.h
Two phase commit to the service. Prepare data to be written to the service from an client delta of attributes.
[TOnlineResult](API\Plugins\OnlineServicesInterface\Online\TOnlineResult)< [FSchemaCategoryInstancePrepareClientChanges](API\Plugins\OnlineServicesInterface\Online\FSchemaCategoryI-_3) > PrepareClientChanges ( [FSchemaCategoryInstancePrepareClientChanges::Params](API\Plugins\OnlineServicesInterface\Online\FSchemaCategoryI-_3\Params) && Params ) const